<template>
    <div class="app-container">
        <!-- 搜索工作栏 -->
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch">
            <el-form-item label="菜单名称" prop="name">
                <el-input v-model="queryParams.name" placeholder="请输入菜单名称" clearable @keyup.enter.native="handleQuery"/>
            </el-form-item>
            <el-form-item label="状态" prop="status">
                <el-select v-model="queryParams.status" placeholder="菜单状态" clearable>
                    <el-option v-for="dict in statusDictDatas" :key="parseInt(dict.value)" :label="dict.label" :value="parseInt(dict.value)"/>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" icon="el-icon-search" @click="handleQuery">搜索</el-button>
                <el-button icon="el-icon-refresh" @click="resetQuery">重置</el-button>
            </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
            <el-col :span="1.5">
                <el-button type="primary" plain icon="el-icon-plus" size="mini" @click="handleAdd"
                           v-hasPermi="['system:menu:add']">新增</el-button>
            </el-col>
            <el-col :span="1.5">
                <el-button type="info" plain icon="el-icon-sort" size="mini" @click="toggleExpandAll">展开/折叠</el-button>
            </el-col>
            <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table v-if="refreshTable" v-loading="loading" :data="menuList" row-key="id" :default-expand-all="isExpandAll"
                  :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
            <el-table-column prop="name" label="菜单名称" :show-overflow-tooltip="true" width="250" align="center"></el-table-column>
            <el-table-column prop="icon" label="图标" align="center" width="100">
                <template v-slot="scope">
                    <svg-icon :icon-class="scope.row.icon" />
                </template>
            </el-table-column>
            <el-table-column prop="sort" label="排序" width="60" align="center"></el-table-column>
            <el-table-column prop="permission" label="权限标识" :show-overflow-tooltip="true" align="center"/>
            <el-table-column prop="component" label="组件路径" :show-overflow-tooltip="true" align="center"/>
            <el-table-column prop="componentName" label="组件名称" :show-overflow-tooltip="true" align="center"/>
            <el-table-column prop="status" label="状态" width="80" align="center">
                <template v-slot="scope">
                    <dict-tag2 :type="DICT_TYPE.COMMON_STATUS" :value="scope.row.status"/>
                </template>
            </el-table-column>
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width" >
                <template v-slot="scope">
                    <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)"
                               v-hasPermi="['system:menu:edit']">修改</el-button>
                    <el-button size="mini" type="text" icon="el-icon-plus" @click="handleAdd(scope.row)"
                               v-hasPermi="['system:menu:add']">新增</el-button>
                    <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)"
                               v-hasPermi="['system:menu:remove']">删除</el-button>
                </template>
            </el-table-column>
        </el-table>

        <!-- 添加或修改菜单对话框 -->
        <el-dialog :title="title" :visible.sync="open" width="800px" append-to-body>
            <el-form ref="form" :model="form" :rules="rules" label-width="100px">
                <el-row>
                    <el-col :span="24">
                        <el-form-item label="上级菜单">
                            <treeselect v-model="form.parentId" :options="menuOptions" :normalizer="normalizer" :show-count="true"
                                        placeholder="选择上级菜单"/>
                        </el-form-item>
                    </el-col>
                    <el-col :span="24">
                        <el-form-item label="菜单类型" prop="type">
                            <el-radio-group v-model="form.type">
                                <el-radio v-for="dict in menuTypeDictDatas" :key="parseInt(dict.value)" :label="parseInt(dict.value)">
                                    {{dict.label}}</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="24">
                        <el-form-item v-if="form.type !== 3" label="菜单图标">
                            <el-popover placement="bottom-start" width="460" trigger="click" @show="$refs['iconSelect'].reset()">
                                <IconSelect ref="iconSelect" @selected="selected" />
                                <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" readonly>
                                    <svg-icon v-if="form.icon" slot="prefix" :icon-class="form.icon" class="el-input__icon"
                                              style="height: 32px;width: 16px;"/>
                                    <i v-else slot="prefix" class="el-icon-search el-input__icon" />
                                </el-input>
                            </el-popover>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item label="菜单名称" prop="name">
                            <el-input v-model="form.name" placeholder="请输入菜单名称" />
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item label="显示排序" prop="sort">
                            <el-input-number v-model="form.sort" controls-position="right" :min="0" />
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.type !== 3" label="路由地址" prop="path">
              <span slot="label">
                <el-tooltip content="访问的路由地址，如：`user`。如需外网地址时，则以 `http(s)://` 开头" placement="top">
                <i class="el-icon-question" />
                </el-tooltip>
                路由地址
              </span>
                            <el-input v-model="form.path" placeholder="请输入路由地址" />
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.type !== 1" label="权限标识">
              <span slot="label">
                <el-tooltip content="Controller 方法上的权限字符，如：@PreAuthorize(`@ss.hasPermission('system:user:list')`)" placement="top">
                  <i class="el-icon-question" />
                </el-tooltip>
                权限字符
              </span>
                            <el-input v-model="form.permission" placeholder="请权限标识" maxlength="50" />
                        </el-form-item>
                    </el-col>
                    <el-col :span="12" v-if="form.type === 2">
                        <el-form-item label="组件路径" prop="component">
                            <el-input v-model="form.component" placeholder="例如说：system/user/index" />
                        </el-form-item>
                    </el-col>
                    <el-col :span="12" v-if="form.type === 2">
                        <el-form-item label="组件名称" prop="componentName">
                            <el-input v-model="form.componentName" placeholder="例如说：SystemUser" />
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item label="菜单状态" prop="status">
              <span slot="label">
                <el-tooltip content="选择停用时，路由将不会出现在侧边栏，也不能被访问" placement="top">
                  <i class="el-icon-question" />
                </el-tooltip>
                菜单状态
              </span>
                            <el-radio-group v-model="form.status">
                                <el-radio v-for="dict in this.getDictDatas(DICT_TYPE.COMMON_STATUS)"
                                          :key="dict.value" :label="parseInt(dict.value)">{{dict.label}}</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.type !== 3" label="显示状态">
              <span slot="label">
                <el-tooltip content="选择隐藏时，路由将不会出现在侧边栏，但仍然可以访问" placement="top">
                  <i class="el-icon-question" />
                </el-tooltip>
                是否显示
              </span>
                            <el-radio-group v-model="form.visible">
                                <el-radio :key="true" :label="true">显示</el-radio>
                                <el-radio :key="false" :label="false">隐藏</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.type !== 3" label="总是显示">
              <span slot="label">
                <el-tooltip content="选择不是时， 当该菜单只有一个子菜单时，不展示自己，直接展示子菜单" placement="top">
                  <i class="el-icon-question" />
                </el-tooltip>
                 总是显示
              </span>
                            <el-radio-group v-model="form.alwaysShow">
                                <el-radio :key="true" :label="true">总是</el-radio>
                                <el-radio :key="false" :label="false">不是</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                    <el-col :span="12">
                        <el-form-item v-if="form.type === 2" label="是否缓存">
              <span slot="label">
                <el-tooltip content="选择缓存时，则会被 `keep-alive` 缓存，必须填写「组件名称」字段" placement="top">
                  <i class="el-icon-question" />
                </el-tooltip>
                 是否缓存
              </span>
                            <el-radio-group v-model="form.keepAlive">
                                <el-radio :key="true" :label="true">缓存</el-radio>
                                <el-radio :key="false" :label="false">不缓存</el-radio>
                            </el-radio-group>
                        </el-form-item>
                    </el-col>
                </el-row>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button type="primary" @click="submitForm">确 定</el-button>
                <el-button @click="cancel">取 消</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
import { listMenu, getMenu, delMenu, addMenu, updateMenu } from "@/api/system/menu";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";
import IconSelect from "@/components/IconSelect";

import { SystemMenuTypeEnum, CommonStatusEnum } from '@/utils/constants'
import { getDictDatas, DICT_TYPE } from '@/utils/dictNew'
import {isExternal} from "@/utils/validate";

export default {
    name: "SystemMenu",
    components: { Treeselect, IconSelect },
    data() {
        return {
            // 遮罩层
            loading: true,
            // 显示搜索条件
            showSearch: true,
            // 菜单表格树数据
            menuList: [],
            // 菜单树选项
            menuOptions: [],
            // 弹出层标题
            title: "",
            // 是否显示弹出层
            open: false,
            // 是否展开，默认全部折叠
            isExpandAll: false,
            // 重新渲染表格状态
            refreshTable: true,
            // 查询参数
            queryParams: {
                name: undefined,
                visible: undefined
            },
            // 表单参数
            form: {},
            // 表单校验
            rules: {
                name: [
                    { required: true, message: "菜单名称不能为空", trigger: "blur" }
                ],
                sort: [
                    { required: true, message: "菜单顺序不能为空", trigger: "blur" }
                ],
                path: [
                    { required: true, message: "路由地址不能为空", trigger: "blur" }
                ],
                status: [
                    { required: true, message: "状态不能为空", trigger: "blur" }
                ]
            },

            // 枚举
            MenuTypeEnum: SystemMenuTypeEnum,
            CommonStatusEnum: CommonStatusEnum,
            // 数据字典
            menuTypeDictDatas: getDictDatas(DICT_TYPE.SYSTEM_MENU_TYPE),
            statusDictDatas: getDictDatas(DICT_TYPE.COMMON_STATUS)
        };
    },
    created() {
        console.log('menu',this.menuTypeDictDatas)
        this.getList();
    },
    methods: {
        // 选择图标
        selected(name) {
            this.form.icon = name;
        },
        /** 查询菜单列表 */
        getList() {
            this.loading = true;
            listMenu(this.queryParams).then(response => {
                this.menuList = this.handleTree2(response.data, "id");
                this.loading = false;
            });
        },
        /** 转换菜单数据结构 */
        normalizer(node) {
            if (node.children && !node.children.length) {
                delete node.children;
            }
            return {
                id: node.id,
                label: node.name,
                children: node.children
            };
        },
        /** 查询菜单下拉树结构 */
        getTreeselect() {
            listMenu().then(response => {
                this.menuOptions = [];
                const menu = { id: 0, name: '主类目', children: [] };
                menu.children = this.handleTree2(response.data, "id");
                this.menuOptions.push(menu);
            });
        },
        // 取消按钮
        cancel() {
            this.open = false;
            this.reset();
        },
        // 表单重置
        reset() {
            this.form = {
                id: undefined,
                parentId: 0,
                name: undefined,
                icon: undefined,
                type: SystemMenuTypeEnum.DIR,
                sort: undefined,
                status: CommonStatusEnum.ENABLE,
                visible: true,
                keepAlive: true,
                alwaysShow: true,
            };
            this.resetForm("form");
        },
        /** 搜索按钮操作 */
        handleQuery() {
            this.getList();
        },
        /** 重置按钮操作 */
        resetQuery() {
            this.resetForm("queryForm");
            this.handleQuery();
        },
        /** 展开/折叠操作 */
        toggleExpandAll() {
            this.refreshTable = false;
            this.isExpandAll = !this.isExpandAll;
            this.$nextTick(() => {
                this.refreshTable = true;
            });
        },
        /** 新增按钮操作 */
        handleAdd(row) {
            this.reset();
            this.getTreeselect();
            if (row != null && row.id) {
                this.form.parentId = row.id;
            } else {
                this.form.parentId = 0;
            }
            this.open = true;
            this.title = "添加菜单";
        },
        /** 修改按钮操作 */
        handleUpdate(row) {
            this.reset();
            this.getTreeselect();
            getMenu(row.id).then(response => {
                this.form = response.data;
                this.open = true;
                this.title = "修改菜单";
            });
        },
        /** 提交按钮 */
        submitForm: function() {
            this.$refs["form"].validate(valid => {
                if (valid) {
                    // 若权限类型为目录或者菜单时，进行 path 的校验，避免后续拼接出来的路由无法跳转
                    if (this.form.type === SystemMenuTypeEnum.DIR
                        || this.form.type === SystemMenuTypeEnum.MENU) {
                        // 如果是外链，则不进行校验
                        const path = this.form.path
                        if (!isExternal(path)) {
                            // 父权限为根节点，path 必须以 / 开头
                            if (this.form.parentId === 0 && path.charAt(0) !== '/') {
                                this.$modal.msgSuccess('前端必须以 / 开头')
                                return
                            } else if (this.form.parentId !== 0 && path.charAt(0) === '/') {
                                this.$modal.msgSuccess('前端不能以 / 开头')
                                return
                            }
                        }
                    }

                    // 提交
                    if (this.form.id !== undefined) {
                        updateMenu(this.form).then(response => {
                            this.$modal.msgSuccess("修改成功");
                            this.open = false;
                            this.getList();
                        });
                    } else {
                        addMenu(this.form).then(response => {
                            this.$modal.msgSuccess("新增成功");
                            this.open = false;
                            this.getList();
                        });
                    }
                }
            });
        },
        /** 删除按钮操作 */
        handleDelete(row) {
            this.$modal.confirm('是否确认删除名称为"' + row.name + '"的数据项?').then(function() {
                return delMenu(row.id);
            }).then(() => {
                this.getList();
                this.$modal.msgSuccess("删除成功");
            }).catch(() => {});
        }
    }
};
</script>
